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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:21:40                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      P
                                                        220-919/Carroll ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              701,316,049        1.0032           699,078,996               49            2,536
           2           A              701,420,110        1.0048           698,069,377               50            1,849
           3           A              700,593,277        1.0098           693,794,095               51            1,442
           4           A              700,858,416        0.9970           702,967,318               50              898
           5           F1             119,840,006        0.6756           177,383,076                7              105
           6           F1             125,157,718        0.8720           143,529,493                6               24
           7           F1             230,433,165        0.8874           259,672,262                5                7
  RANDOM TOTALS:                    3,279,618,741                       3,374,494,617              218            6,861
  CATG D1 EXCEPTION VALUES:               197,121                             152,029
 TOTAL TEST VALUES (4):             3,279,815,862                       3,374,646,646
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               168,732,332
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               3,205,914,314 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                3,279,815,862 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               3,543,378,978 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                3,651,972,035 (SEE ISD SUMMARY WORKSHEET)

 SOURCES:
 (1) SEE STRATIFIED CATEGORY WORKSHEET REPORTS PTS236, PTS430
 (2) NUMBER OF PARCELS SAMPLED BY STAFF
 (3) TOTAL CATEGORY PARCELS FROM STRATIFICATION REPORT APPRAISAL ROLL, OR SELF-REPORT
 (4) INCLUDES ANY PARCELS IN A, B, C, D3, F1, G1, G2,OR L1 MARKED AS EXCEPTION PROPERTIES
 (5) UNSTUDIED CATEGORIES AND SUB-CATEGORIES WERE NOT INCLUDED IN THE CONFIDENCE INTERVAL VALUES